diff options
| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2015-11-17 13:37:08 +0200 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2015-12-05 13:54:28 +0530 |
| commit | e3fdb1894cfac6dd4a5bb24d3232fd97ddf74c93 (patch) | |
| tree | 8916c7ada04d6831f6a75dde70aa98885ed35c7a /drivers/dma/idma64.h | |
| parent | dmaengine: idma64: drop IRQ enable / disable in handler (diff) | |
| download | linux-dev-e3fdb1894cfac6dd4a5bb24d3232fd97ddf74c93.tar.xz linux-dev-e3fdb1894cfac6dd4a5bb24d3232fd97ddf74c93.zip | |
dmaengine: idma64: set maximum allowed segment size for DMA
This tells, for example, IOMMU what the maximum size of a segment
the DMA controller can send.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/idma64.h')
| -rw-r--r-- | drivers/dma/idma64.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma/idma64.h b/drivers/dma/idma64.h index f6aeff0af8a5..8423f13ed0da 100644 --- a/drivers/dma/idma64.h +++ b/drivers/dma/idma64.h @@ -54,7 +54,8 @@ #define IDMA64C_CTLL_LLP_S_EN (1 << 28) /* src block chain */ /* Bitfields in CTL_HI */ -#define IDMA64C_CTLH_BLOCK_TS(x) ((x) & ((1 << 17) - 1)) +#define IDMA64C_CTLH_BLOCK_TS_MASK ((1 << 17) - 1) +#define IDMA64C_CTLH_BLOCK_TS(x) ((x) & IDMA64C_CTLH_BLOCK_TS_MASK) #define IDMA64C_CTLH_DONE (1 << 17) /* Bitfields in CFG_LO */ |